-- card: 82041 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #264
----- HyperTalk script -----
on openCard
  global group,rightone
  put 27 into group
  put "D" into rightone
  pass openCard
end openCard



-- part contents for background part 20
----- text -----
Question #27

-- part contents for background part 1
----- text -----
4BF-3.1 What is a "phase-locked loop" circuit?

-- part contents for background part 11
----- text -----
An electronic servo loop consisting of a ratio detector, reactance modulator, and voltage-controlled oscillator

-- part contents for background part 27
----- text -----
An electronic circuit also known as a monostable multivibrator

-- part contents for background part 28
----- text -----
An electronic circuit consisting of a precision push-pull amplifier with a differential input

-- part contents for background part 29
----- text -----
An electronic servo loop consisting of a phase detector, a low-pass filter and voltage-controlled oscillator

-- part contents for background part 43
----- text -----
Correct answer is D